For Herod had laid hold on John, and bound him, and put [him] in prison for Herodias' sake, his brother Philip's wife. (14:3)

For John said unto him, It is not lawful for thee to have her. (14:4)

--Mark--

For Herod himself had sent forth and laid hold upon John, and bound him in prison for Herodias' sake, his brother Philip's wife: for he had married her. (6:17)

For John had said unto Herod, It is not lawful for thee to have thy brother's wife. (6:18)

Therefore Herodias had a quarrel against him, and would have killed him; but she could not: (6:19)